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-rw-r--r--fs/debugfs/file.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index ff64bcd5b8fb..63146295153b 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -473,6 +473,7 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf,
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
+ buf[buf_size] = '\0';
if (strtobool(buf, &bv) == 0)
*val = bv;